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CVE-2026-21577: Uncontrolled Resource Consumption

🗓️ 21 Jul 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

This High severity DoS (Denial of Service) vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center. This DoS (Denial of Service) vulnerability, with a CVSS Score of 7.1...

Related
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus
Atlassian Confluence 9.0.1 / 9.1.x / 9.2.x < 9.2.17 / 9.3.1 / 9.4.x / 9.5.1 / 10.0.2 / 10.1.x / 10.2.x < 10.2.7 (CONFSERVER-104334)
31 Jul 202600:00
–nessus
atlassian
Atlassian
DoS (Denial of Service) in Confluence Data Center
8 Jul 202601:50
–atlassian
cve
CVE
CVE-2026-21577
21 Jul 202617:00
–cve
cvelist
Cvelist
CVE-2026-21577
21 Jul 202617:00
–cvelist
euvd
EUVD
EUVD-2026-46327
21 Jul 202617:00
–euvd
nvd
NVD
CVE-2026-21577
21 Jul 202618:16
–nvd
ptsecurity
Positive Technologies
PT-2026-61999
21 Jul 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-21577
21 Jul 202617:00
–vulnrichment

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10 Aug 2026 00:00Current
CVSS 3.16.5
CVSS 47.1
EPSS0.00243
SSVC
0